CVE-2026-20057 - Cisco Secure Firewall Threat Defense Software Snort 3 Visual Basic for Applicati...

CVE-2026-20057 - Cisco Secure Firewall Threat Defense Software Snort 3 Visual Basic for Applicati...

CVE ID : CVE-2026-20057 Published : March 4, 2026, 6:16 p.m. | 27 minutes ago Description : Multiple Cisco products are affected by a vulnerability in the Snort 3 Visual Basic for Applications (VBA) feature which could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to crash.    This vulnerability is due to lack of proper error checking when decompressing VBA data. An attacker could exploit this vulnerability by sending a crafted VBA data to the Snort 3 Detection Engine on the targeted device. A successful exploit could allow the attacker to cause the Snort 3 Detection Engine to unexpectedly restart causing a a denial of service (DoS) condition. Severity: 5.8 | MEDIUM Visit the link for more details, such as CVSS details, affected products, timeline, and more...

CVE Details

Severity
MEDIUM
Published
March 4, 2026
Affected Product: Cisco
Impact: denial of service